EN9000

EN9000 Rotating Machinery Vibration Monitoring& Protection System

EN9000 integrates the on-line monitoring and protection system (TSI) and fault diagnosis expert system (TDM+ES) and is mainly used for on-line vibration monitoring, protection, analysis and fault diagnosis of large mechanical equipment of the power sector, petrochemical industry, metallurgical industry, etc.such as steam turbine generator set, hydroelectric generator set, compressor unit, air blower, electrical motor, water pump, gear and bearing.

This system could continuously gather state parameters related to the equipment safety, including key phase/speed, shaft vibration, casing vibration, axial displacement, differential expansion, eccentricity, and other procedural parameters.

EN9000 hardware system adopts a modular structure, all submodules support Hot-Plug and could be expanded flexibly in order to meet the requirement of diversified on-site supervision.

EN9000 system was developed by our company independently by combining the advanced technologies. We own the full intellectual property of this product.

	Main Technological Specification

Item	Technical Specifications
Chassis Structure	International Standard 6U
Power System	Two-way broad-voltage AC/DC redundant power supplies
Host Modules	Key Phase Module ：1/2 channels；Vibration Module：4 channels； Process Parameters ：8/20 channels
Input Signals	Signals from isplacement、speed and acceleration sensors，process parameters and output signals from intelligent instruments.
Display Mode	bar chart, figure, curve, waveform, spectrum and the orbit of shaft centerline, etc.
Measuring Range	Rotation speed 0-32000r/min；Shaft shift 、Expansion＋65mm；Current4-20mA
Measuring Accuracy	Rotation Speed ≤1r/min，Vibration≤1μm，Shaft shift、Expansion<0.01mm，Others<0.1％
Frequency Analysis Range	1/16X-32X，1/4X-128X etc., the low limit of frequency is 0.5Hz through compensation
Maximum A/D Collecting Speed	>100KHz
System Overall Consumption	<80W
Communication	Communicate with the in-plant DCS and MIS systems and the remote fault diagnosis center.



		Main Function

1.Flexible System Setup& Audio-visual Monitoring Displays

With the view of knowing the status of site equipment, TSI of EN9000 could display the status of signals of each acquisition module directly in bar chart, figure, curve, waveform, spectrum and the orbit of shaft centerline.

The channel names, units and real-time values could be displayed on different frames. In addition, such indicator lights as OK, bypass, alarm, danger and protection enabled are provided on the frame and the number of channels and waveforms displayed as well as the upper limit of frequency spectrum could also be configured.

The parameters for ensuring the normal system operation could be configured on TSI touch screen or TDM+ES and the configuration will be saved in the disk and will not be lost even upon power failure.

2.High-reliable protection system

EN9000 protection system = Redundant power supply+ module Hot-Plug + Powerful submodules protection design

3.Data acquisition, monitoring and protection modules

Power system：Two-way broad-voltage AC/DC redundant power supplies conforming to the European Standard, overflow protection, over voltage protection and under voltage production for each way of power supply for ensuring the normal system operation. It guarantees the stable and reliable operation of this system.

Submodules: this system is highly modularized, and the submodules support on-line Hot-Plug to ensure the independence of each module and ensure the failure-free operation of other modules when one goes wrong.

Alarm monitoring and protection: when each module goes wrong, the alarm will be given with indicator light and corresponding channel will be protected to avoid further damage of the system.

Screen display：Each acquisition protection module has a small LCD (white, green or blue back light) for direct display of current revolution and corresponding vibration value as well as some key internal data.

Output：Each acquisition protection module is provided with high-precision buffering and 4-20mA transduced current output, facilitating the connection of secondary instrument, portable test system and DCS system.

4.Primary Functions of TDM+ES

TDM+ES could be used to configure the channel and sampling parameters of TSI. Fig. 13 is the main menu for system parameter setting and Fig. 14 is the menu for channel parameter setting. The system could configure the database scale and storage conditions, and automatically store relevant data and form historical database (the database by hour, day, month and year), event database, original comparative database, black box database and property database, and could maintain such databases.

TDM+ES adopts the industrial configuration and could edit the data and the data presentation on-line. It could display the monitored data in real time with the main monitoring graph, bar chart, data sheet and curve. It is on alarm through screen blinking when the equipment goes wrong.

The upper computer fault diagnosis expert system (TDM+ES) starts from the nature of fault diagnosis and runs in the Windows environment in accordance with the research results of the inverse problems of fault diagnosis, which embodies the scientific diagnosis theories and advanced diagnostic techniques. It sets up an open knowledge base applicable to the fault diagnosis of steam turbine generator set, hydroelectric generator set, compressor/air blower and gear/bearing and has perfect knowledge processing modes. In particular, its powerful and automatic indication acquisition ability results in real-time fault diagnosis and reliable diagnostic result.

It could discover unbalance of the rotor system, rotor thermal distortion, misalignment, rotor-to-stator rubbing, loss of material from rotor, oil whirl/whip, flow steam caused vibration and damaged bearing/journal, rotating wheel cavitation, imbalanced electromagnetic force, rotating stall, surging as well as gear and bearing breakdown, and also present the diagnostic result credibility, diagnostic result foundation and corresponding solutions.

It could be used for diagnostics on line or off line automatically or through dialogues by adopting the reasoning pattern combining rules, models and cases and by applying the strategy of forward and reverse hybrid reasoning. Through the intelligent and automated fault diagnosis, the inexperienced personnel could also get high-level diagnostic result.

5.Remote diagnosis and WEB service

The remote diagnosis center communicates with TDM+ES on Internet (through dial-up, ADSL, ISDN, etc.) in C/S or B/S mode. The enterprise broadband ADSL is comparatively economical and practical presently. In a general way, the C/S mode is featured in nice man-machine interaction, error message, on-line help, etc., but it costs higher to develop new software and the software update and maintenance is difficult. In the B/S mode, the operation could be done anywhere with a computer that could access Internet instead of installing any special software, and the client needs no maintenance, but the interface is limited.

If the remote analysis and diagnostic center is an effective tool for the experts to deal with field problems, Web service is an effective tool for general personnel and leaders to know the status of field equipment, as at the remote analysis and diagnostic center, the data selection and signal analysis methods are decided by the experts in accordance with specific problems, which requires expertise and on-site experience, while the Web Server could transmit data, figures and diagnoses to the remote end at fixed times, thus network users could use the above signal analysis and fault diagnosis function without installing any client software (related plug-in is required to be downloaded for the use of the first time).

In addition, TDM+ES is also capable of data recall, data and report printing, screen printing, storage of screen to graphics file, storage of tabular data to text and Excel files, on-line system backup and update, etc.

	Order Guide

This system is of modular design and it is configured according to the quantity and nature of measuring points as well as concrete requirements of users, thus please contact us before making order and we shall invite senior experts to provide you with technical consulting service free of charge.

The functions and technical indicators of EN9000 may be different in accordance with the different monitoring objects and user requirements.

One key phase/ revolution signal is required usually to ensure the sampling in the full period. For certain compressors or air blowers with gear box, two key phase/ revolution signals are required. For equipment with stable revolution or unimportant equipment, the manual key phase on the vibration acquisition board could be adopted and it is not required to install key phase/revolution sensor.

We have accumulated rich on-site experience on the centralized monitoring and display of the vibration and procedure parameters as well as industrial control, and we may help you to design, install and debug if the original equipment needs to go through technological transformation.

Don't hesitate to contact Beijing ENVADA for details. (Tel: 010- 62198800, Fax: 010- 62139855)